I show Animas pump users, how to extract insulin from their insulin pen to their Animas pump cartridge. This is a great way to use up your excess insulin pens, and save a little money at the same time. I also show you how to extract insulin from your Animas cartridge to your syringe. Great way to save on insulin, and to get insulin for those unexpected emergencies. PLEASE NOTE, ONLY USE RAPID ACTING INSULINS, SUCH AS NOVOLOG & APIDRA. DO NOT USE LEVEMIR, HUMALOG, R, N, or LANTUS, UNDER NO CIRCUMSTANCES; THESE INSULINS ARE NOT DESIGNED TO BE USED IN A PUMP, AND CAN BE FATAL!!